STT to ORD flight delays & on-time performance
Nonstop flights from Cyril E. King Airport to Chicago O'Hare International Airport · 2,116 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STT or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Charlotte Amalie (STT) to Chicago (ORD) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.2% were cancelled, and 12% arrived an hour or more late.
- United Airlines was the most punctual airline here (71% on time); American Airlines was the least (70%).
- Departures scheduled around 1pm did best (81% on time); around 3pm did worst (67%).
- Friday was the most reliable day to fly (93% on time) and Sunday the least (54%).
- The largest source of delay minutes was late-arriving aircraft (55%).
Which airline is most on time from STT to ORD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 71% | 1.3% | 27 min | 8.1% | 155 |
| American Airlines | 70% | 1.0% | 39 min | 18.3% | 100 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 1pm81%29 flights
- 2pm73%95 flights
- 3pm67%130 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday69%0.0% cancelled
- Tuesday58%0.0% cancelled
- Wednesday79%0.0% cancelled
- Thursday76%0.0% cancelled
- Friday93%0.0% cancelled
- Saturday70%4.7% cancelled
- Sunday54%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft55%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion17%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Air traffic control & airport congestion67%
- Airline (crew, maintenance, cleaning, fueling)33%
- Extreme weather0%
- Security0%
STT to ORD: common questions
- How often are STT to ORD flights on time?
- 71% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Charlotte Amalie to Chicago cancelled?
- 1.2% of scheduled flights were cancelled (3 of 255).
- How long are typical delays?
- Across all flights the average arrival delay was 32 min (early arrivals count as zero). Flights that were late arrived 103 min behind schedule on average, and 12.0% of flights were an hour or more late.
- How long is taxi time at STT?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to STT — 70% on time
More flights from Charlotte Amalie
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STT → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.